TY - GEN
T1 - Visible Light Communications
T2 - 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
AU - Haigh, Paul Anthony
AU - Burton, Andrew
AU - Chvojka, Petr
AU - Zvanovec, Stanislav
AU - Ghassemlooy, Zabih
AU - Darwazeh, Izzat
N1 - Funding Information:
This work is supported by the UK EPSRC grant EP/P006280/1: MARVEL, CTU Prague and KU Leuven (CELSA) project “Polarization In wireless CommuNICations (PICNIC)” and by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement no 764461 (VISION).
PY - 2020/7/22
Y1 - 2020/7/22
N2 - In this paper, we propose a new receiver and demodulation method for use in wavelength division multiplexed visible light communications systems, utilising the natural diversity offered by photodiodes. This is based on the wavelength dependent photodiode responsivities, which lead to different signal-to-noise ratios at the receiver. Using this method, it is possible to transmit independent information using on different wavelengths but where signals occupy the same electrical frequency range and where they would, otherwise, interfere. We illustrate and experimentally demonstrate that through simple subtractions the signals can be extracted with the constellations showing Q-factors corresponding to sufficiently low bit error rates.
AB - In this paper, we propose a new receiver and demodulation method for use in wavelength division multiplexed visible light communications systems, utilising the natural diversity offered by photodiodes. This is based on the wavelength dependent photodiode responsivities, which lead to different signal-to-noise ratios at the receiver. Using this method, it is possible to transmit independent information using on different wavelengths but where signals occupy the same electrical frequency range and where they would, otherwise, interfere. We illustrate and experimentally demonstrate that through simple subtractions the signals can be extracted with the constellations showing Q-factors corresponding to sufficiently low bit error rates.
KW - Digital signal processing
KW - non-orthogonal
KW - optical communications
KW - visible light communications
KW - wavelength division multiplexing
UR - https://www.scopus.com/pages/publications/85097651336
U2 - 10.1109/CSNDSP49049.2020.9249495
DO - 10.1109/CSNDSP49049.2020.9249495
M3 - Conference contribution
AN - SCOPUS:85097651336
SN - 9781728160511
T3 - 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
BT - 2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020
PB - IEEE
CY - Piscataway, NJ
Y2 - 20 July 2020 through 22 July 2020
ER -